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anonymous
 one year ago
The point (8/17,y) lies in the first quadrant of the unit circle. If θ is the angle between the radius joining this point and the positive xaxis, then sinθ =? and tanθ =? .
anonymous
 one year ago
The point (8/17,y) lies in the first quadrant of the unit circle. If θ is the angle between the radius joining this point and the positive xaxis, then sinθ =? and tanθ =? .

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Write your answers as reduced improper fractions, using / for the fraction bars.

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1dw:1436541841381:dw

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1dw:1436541938607:dw

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1as we have a unit circle the length of hypotenuse = 1

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1Hint work out cos O first cos O = 8/17 / 1 so find O then sin O and tan O

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1or another way to do it would be by using the pythagoras theorem  you know the length of one leg and the hypotenuse so you can find the length of y

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1sin O = y and tan O = y / (8/17)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0this is so confusing

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1by pythagoras i^2 = y^2 + (8/17)^2 y^2 = 1  (8/17)^2

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0can u help me with more?

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1y^2 = 289/289  64/289 = 225/289 y = 15/17

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1i could but gotta go right now
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